I was wondering if anyone knew anything about the formula for vehicle respawn time is calculated. For example, the vehicle respawn time could be as simple as 2 minutes after the last vehicle of the same type was destroyed. Or it could be much more complicated, taking into account how long the last tank stayed alive or whether a certain amount of total time has passed since the start of the map. For all I know vehicle respawn times are set with different values for each map.
Is there any data or information how vehicle respawn times are calculated?